The first human case of West Nile virus in Massachusetts this year was reported Aug. 22, according to the state Department of Public Health. The Middlesex County resident in his 60s is hospitalized but recovering while the department ascertains where he was exposed to infected mosquitoes.

“We’re in our peak season for possible West Nile virus human infection,” DPH State Public Health Veterinarian Dr. Catherine Brown said in a press statement. “We need to continue to take steps to protect ourselves against mosquito bites by using insect repellant, covering up, and reducing outdoor activities at dusk and after nightfall when mosquitoes are at their most active.”